linux-kernel - [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: enable pwm rg leds

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Message-ID: <20251114-add-rgb-led-for-hamoa-iot-evk-v3-1-5df1fcd68374@oss.qualcomm.com>
Date: Fri, 14 Nov 2025 00:13:03 -0800
From: Tingguo Cheng <tingguoc@...tingguoc-lv.qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: Tingguo Cheng <tingguo.cheng@....qualcomm.com>, kernel@....qualcomm.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Kamal Wadhwa <kamal.wadhwa@....qualcomm.com>,
        Rakesh Kota <rakesh.kota@....qualcomm.com>,
        Fenglin Wu <fenglin.wu@....qualcomm.com>
Subject: [PATCH v3] arm64: dts: qcom: hamoa-iot-evk: enable pwm rg leds

From: Tingguo Cheng <tingguo.cheng@....qualcomm.com>

Add RED and GREEN LED channels for the RGB device connected to PMC8380C
PWM-LED pins. Omit BLUE channel to match default hardware setup where
it's tied to EDL indicator.

Signed-off-by: Tingguo Cheng <tingguo.cheng@....qualcomm.com>
---
Changes in v3:
- Rebased on next-20251113.
- Validated the function based on the patch "[PATCH] leds: rgb: leds-qcom-lpg: Allow LED_COLOR_ID_MULTI".
- Link to v2: https://lore.kernel.org/r/20251030-add-rgb-led-for-hamoa-iot-evk-v2-1-3b3326784d7b@oss.qualcomm.com

Changes in v2:
- Rebased on next-20251030.
- Remove BLUE led channel to align with the default hardware configuration.
- Link to v1: https://lore.kernel.org/r/20251017-add-rgb-led-for-hamoa-iot-evk-v1-1-6df8c109da57@oss.qualcomm.com
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 36dd6599402b4650b7f8ad2c0cd22212116a25fe..e0d427b7a207c097a19f454ec3d7d6c3edc8f79f 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -5,6 +5,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/leds/common.h>
 #include "hamoa-iot-som.dtsi"
 
 / {
@@ -879,6 +880,28 @@ usb0_1p8_reg_en: usb0-1p8-reg-en-state {
 	};
 };
 
+&pm8550_pwm {
+	status = "okay";
+
+	multi-led {
+		color = <LED_COLOR_ID_MULTI>;
+		function = LED_FUNCTION_STATUS;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		led@1 {
+			reg = <1>;
+			color = <LED_COLOR_ID_RED>;
+		};
+
+		led@2 {
+			reg = <2>;
+			color = <LED_COLOR_ID_GREEN>;
+		};
+	};
+};
+
 &pmc8380_5_gpios {
 	usb0_pwr_1p15_reg_en: usb0-pwr-1p15-reg-en-state {
 		pins = "gpio8";

---
base-commit: ce649144bbb174abb260a3f9d77f480d8d56e813
change-id: 20251017-add-rgb-led-for-hamoa-iot-evk-43ed6bda73a5

Best regards,
-- 
Tingguo Cheng <tingguo.cheng@....qualcomm.com>